Who we are
Established in 2000, DecisionOne is a BI design consultancy set up by Lawrence Corr. We believe that collaborative data design known as modelstorming dramatically improves how organisations understand their data and gain valuable business insight from it.

What we do
We help organisations create better BI solutions. We do that through modelstorming workshops and public training courses worldwide.

Agile Data Warehouse Design eBook Now Available


When and Where
We are running our popular Agile Data Warehouse Design courses near Boston, 18-20 October and in Leeds, 5-7 December. View our full 2017/8 worldwide training schedule for further dates and locations.


Why work with us

See who our clients are and what they say about us.

How can we help you

Book on one of our public courses or contact us to organise on-site training, design reviews or a modelstorming workshop.